Mechanical movement



APPLICATION FILED SEPT. 25, 1919- w. Fl FRASER. MECHANICAL MOVEMENT.

Patented Aug. 1, 1922.

4 SHEETS-SHEET l.

f/Z/ve 71 tom /177 672/ f 'Ensez Zyfzis a W. F. FRASER. MECHANICAL MOVEMENT. APPLICATION FILED SEPT.25, 1919. I 1,424,391 Patented Aug. 11, 1922.

4 SHEETSSHEET 2.

W F FRASER MECHANICAL MOVEMENT.

APPLICATION FILED SEPT. 25, I919- 1 24,397, Patented Aug. 1, 1922.

4 SHEETS-SHEET 3.

517/677/007 Y 54%] 767 a}? Ease W. F. FRASER.

MECHANICAL MOVEMENT. APPLICATION FILED SEPT. 25. I919.

1,424,397., Patented Aug. 11, 1922.

4 SHEETSSHEEI 4-.

warrewfflwer wannnn r. FRASER, on wnsmnono. rvmssecnnsnrrs.

MECHANICAL movniasnr.

lessees,

To all whom it may concern Be it known that I, l vannnn F. Fnasnn, a citizen of the United Statesyresiding at "Westboro in the county of Worcester and State of illass-acl'iusetts, have invented new and useful Improvements in Mechanical Movements, 'of which the following is a specification. i

This invention relates to improvements in mechanical movements for imparting a re ciprocatory motion to member of a ma-v chine and is particularly adapted to grinders lathes and machine toolshaving a reciprocatory work carrying table.

the object of the invention is to impart a reciprocatory motion to the work table of a, grinder or other machine toolw'hich will gradually decrease the speed of the table at each end of its stroke and will start the table in an opposite direction at a gradually increasing speedwitl'iout any change beingnecessary in the speed of the main driving shaft, whereby aheavy andquickly moving member, such as the work table .of :1 grindeninay be gradually brought to a stop when moving in one direction and gradually startedto move in the opposite direction. 1 s

The invention consists particularly in an improved mechanismforbringing the table to a gradual stop and for gradually starting its movement in an opposite direction.

The invention further consists in mechanism whereby the mechanism which reciprocates the work table may be easily and quickly changed to be operated either by power or by han l. I "he invention consists, further, in the comhinationand arrangement of parts set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings: i Figure l is a front elevation of my improved grinder.

' is=a sectional plan on an enlarged scale taken on line 22 of Fig. 1.

Fig. 3 is a sectional elevation taken on line 8-3 of Fig. '1, and partly broken away.

Fig. l is a sectional elevation taken on line l-4 of Fig. 2; i Fig. 5 is a sectional elevation taken on line 5-5 of Fig. 1. v

6 is a sectional elevation taken on line 6-6 of Fig. 1. i

Like numerals refer to like parts throughout the several views of the drawings.

transversely of the, table 11.

specification of Letters Patent. Pattented Aug. ll 1922 Application filed September 25, 1919. Serial No. 326,272. i i i In the drawings, 1OCis the l frame .of the 11 IS a reciprocatorytable upon machine. which is mounted a head-stock:12 and'tail stock 13 upon whiclrthe workto be operated upon is mounted in .the usual well known manner. 14 is a rotary grinder-or emery wheel rotatably monntedwupon a head 15 which is slidably mounted upon the frame 10 and. is moi ed transversely rocatory table llby a nutLlG which engages a screw-threadedshaft 17' rotatably mounted upon the frame; of the machine and the nut 16 engages an arm 18 which projects downwardly from the grinder head 15. v

it movement transversely of the table 11 is imparted to the grinder bya ratchet 19 fast I to i the screw-threaded shaft 1 l7; said "atchet being rotated. intermittently bya pawl QC-mounted on lever-21 which is pivoted at to the frame of the machine and has a rocking movement imparted there-s tooby alever which is provided with a laterally extending arm 2%; upon: the free end of which is tjournaled a roll 25 which is adapted to engage screws 26 and27 when the lever 23 is rocked as hereinafter set forth. When said lever 23 is rocked the roll25 of the recipJ i moves upwardly andidownwardly engaging I the screws 26 and 2'? mg. movement to the lever 21, whereby. the ratchet lShas intermittently rotating the shaft 117.. and through the nut 16 and arm lS the grinder trams and its wheel aremoved step bv step The table is moved alternately in opposite directions by,.mechanism which will now he explained.

t 28 is the main drivingshaft of the machine I and is rotatedhy any suitable i'neanssuch as a pulley in the direction 0f.thearrow a (Fig. 2). Said main driving shaft has two gears 29 and 30 fast thereto; The gear 29 meshes into a gear 31 which loosely mounted upona shaft 32 to which is fastened a worm 33. The'gear 30 meshes with an in termediate gear 34-. which, in ;turn,meshes withca gear--35 rotatably mounted upon the. shaft. 32. The gears 31 and 35 are alternately locked to the shaft 32 hy a reciprocatory clutch member 36 which is'provided on its opposite ends with teeth 37 :1nd 38'adapted to engage teeth 89 and 410v on the gears 35 :nid3l, respectively 1; i

The clutchmember 86 is splined tothe and imparting a rockan intermittent rotary movement nnparted thereto 'bythepa-wl 20, thus.

i shaft32so that it can bereciprocated on said movinggthe clutch member alternately into shaft but is locked'against rota-rymov'ement thereon, so that when the teeth 37 onthe clutch are brought into engagement with the teeth 39 on the gear 35 the shaft 32will berot'ated i in one direction and when sai'd clutclimember is moved so as to bring" the teethj38 into engagement with the teeth 40 on the gear 31, then the shaft 32 will heretatedv inthe opposite direction. Thus by .engagement withthe teeth 39 or "the teeth ment with said plates and are adaptedfto al- I alternately fast to the table 11. A rack 43- also fast to thetable 11 has fastened thereto plates 109 and llOprovided with tappet screws 111 and 112 which have screw-threaded engage-- ternately engage, near theextreme end of i the movement of-the rack 43 andtable 11,

astud 113 slidably mounted in the lever 23.

The worm gear 41 and the spur gear 42,

, therefore, rotate as one piece and are rotatably mounted uptnan eccentric pin 44 project-ing from theinner end of a rock-shaft 45 which is ournaledxinan auxiliary frame 46,.said frame having mounted thereon the mechanism which is} hereinafter described thereto (Figs. 1,3 and 6) and this arm has acam roll94'8 mounted on its free end and for actuatingthe reciprocatory 'tablel 1, and

for gradually stopping-and starting said table. f p

. The rock-shaft has an arm 47 "fast engaging a cam slot. iQprovidedin the lever .23. The lever 23 is pivoted at 50 to the: auxiliary frame 46 and is normally held-inn the position illustrated in Fig. 1. that is,

in. a centrally located position by spring actuated pins 51 and 52 slidably mounted in a bracket 53 fast tothe auxiliary frame 46 (Figs l and 8). The pins 51 and 52 are each in itsuppermostposition when the lever 23 isin its neutral position ng illustrated' in .1 and said pins, are stopped in the positionsillustrated inFig. 1 by the nuts 54 and 55 havlng' screw-threaded engagement therewith and adapted to engagethe bracket The-clutch member 36 is shifted to lock the gear 31 or the gean35 to. the shaft 32.1w mechanism which. will now be described; 7 consisting of a stud -56-(see Figs. land 2) .which is fastened to: the lever 23 and proects-rearwardly therefrom through an open ing 57' in the auxiliary frame 46. The inner by hand insteadof by power, it is. accomfree end (of said. stud 56 v is arranged {to play between two pins '58-' and59 which are.

respectively, actuated by springs 60 and 61:.

Said pins; 5'8an'd 59 are slidably mounted upon a sliding frame 62 which is arranged to slide upon a stationary shaft 63 fast to the auxiliary-frame 4-6. Said sliding frame has an ear64 to which is fastened a bifurcated arm 65 which engages a slot 66 formed in the periphery of the clutch member 36, so that the frame 62 is moved in opposite directions, as hereinafter described,'the clutch member 36. will be moved with it.

A rocker frame 6? (Figs. 2, 3 and 4) and also shown indotted lines Fig. 1, is pivoted at 68 to the auxiliary frame 46. This rocker frame 67 is located adjacent the inner-face of the front plate of the aumliary frame 46.:and has an opening 69 extending therethrough through which the stud 56 projects; (Bald rocker frame 67 is normally locked in position by means of a pin 70 .(Figla) which is: adapted tov project into a notch 71 provided'in an arm72 which is fastened to,

a rocker-shaft 73 to which a rocking motion may be imparted by meansof an arm 74 fast thereto and connected by a link 75 to an arm 76 fast to ashaft 77 whichis operated by means of a hand lever 78 (Fig. It will be noted thatthe notch 71 opens out of the upper edge of the arm 72 and is provided with oppositely inclined edges 79 andSO. 3

' The distance to. which; the rocker frame 67 can move is limited by a stop pin .81 which is fastened to the front plate of theauxiliary frame 46 :(Fig. .3),'said rocker frame be- [ingprovided with a notch 82in its lower edge intowhich the pinSl projects.

The'sliding' frame 62 is locked in position against movement toward the right (Figs 2).by a tripper lever 83 which is pivoted at .84 to the rocker frame '67 and the front end 83 of said tripper lever is adaptedto engage the right hand edge (Fig.

' Q-of a plate85 whichis fastenedtotheslide frame 62 (see Fig. Said slide frame 62'is locked at certain times against move mentptowardl the left (Fig. 4;) by another tripper lever 86 which is pivoted on a pin 87 fast to the rocker-frame 67,1andi. at certain times in the operation of the machine. as hereinafter described, the frontend 86" of thel tripper lever 86 will; engage the left hand side of the plate..85' and prevent the slide frame 62 from being moved toward the left (Figs; Q aud by the spring 60.; -The tripper levers 83 and 86are joinedtoget'her by a tension spring 88.

. i The, stud 56 1sprov1ded with two tripper screws 89 and 90 whichhave. screw-threaded engagementwith saidstud and are adapted. i

alternately to engage the tr ipp'er levers S3 and 86, respectively, 1

When it is desired to operatethe table 1.1

plished by rocking the shaft'77 by means "of the hand lever '78,. rocking saidshafti for all arm 74, will rock the rocker shaft 73 in the opposite direction to that of thearrow b and this will cause the arm 72 to be moved downwardly and disengage the pin 70, whereupon the rocker frame 67 will be free to rock toa limited-extent uponits-pivot 6 the extent of said rocking movement being limited by the pin 81. Atthe same time that the arm 72 is thus moved downwardly (Fig. 4) another arm 91 fast to the rock shaft 73 will be rocked downwardly and said arm has a notch 92 in its lower edge whieh' will then engage a pin 93 fast to the slide frame 62 (Figs. 3 and f), The arm 91. has oppositely diverging edges 94: and 95 which are adapted to engage the pin 93, according to the position of the slide (SQand move said slide toward the right or left,- as the case maybe, but as shown in Fig. 2 toward the right, and thus through the bifurcated arm 65 the clutch member 36 will be moved out of engagement with the gear 35 and into a neutral position between thegears 31 and 35. Thus the power driving mecha.

nism is thrown out. of action.

When the hand lever 78 turned in the direction of the arrow Z, the shaft 77 will be rocked as hereinbefore set forth and this will move a cantilever 96 fast to the rear end thereof (Fig. 5). said cam lever has aninclined segmental arm 9? on the lower end thereof which engages a pin 98 and said pin is 'slidably mounted in a shaft 99, said shaft being rotatably mounted in a bushing 100 in the auxiliary frame 46. Aspline 101 is fastened to the pin 98 and projects into a slot 102 formed in said shaft 99.

A spiral gear 10 is rotatably mounted on the shaft 99 and is provided with a heyway l0-l into which the spline 101 is adapted to move when the pin 98 is moved toward the left by a spiral spring 105 located in arecess 106 in the shaft 99.

W hen the cam segment 9"? moved by the lever 96 and by the hand lever 78, as hereinbefore set forth, the pin 98 will be moved toward the left (Fig. 5). by the spring 105 from the position illustrated in Fig, 53 until the splinelOl moves into the keyway 104; and thus locks the gear .103 tothe shaft 99., The spiral gear 103 meshcswith a spiral gear 10'? fast to the worm shaft 82.

The shaft 99 has a hand wheel 108 fast thereto by means of which said shaft may be rotated, and when the partsare in the relative positions just described, with the el utchxiti thrown out of engagement with the power driven gears 31 and 35, said gears l0 and 1.07 may be rotated by rotating the hand wheel 108 and when so rotated the worm 32% will be rotated, thus rotating-the worm, gear .151 and the gear 42 and imparting movement to the rack til-and table 11.

The general operation of the-mechanism hereinhefore specifically and to some extent in generaldescrihed is as follows: issuer ing the parts to be in the relativepositions illustrated in the drawings, with the it er 23 '11 its neutral position the clutch 3b in engagement with the gear 35, the notch 71. in the arm 72: engaging and holding in a fixed position the rocker-frame 67, the tripper lever 83 engaging the right hand side of the plate upon the slide frame 62 and the maindriving shaftQS rotated in'the di-- rection of the arrow a then the shaft 32 and worm 33 will be rotating in the direction of the arrow 0 (Fig. 2) and the worm gear ti. and spur gear, 42 will be rotated in thedh rection of the arrow at (Fig. 4) while the rack and table 11 will be moving in the direction of the arrow cu, ld lienfhe reel: 4;?- and the table 11 arrive at a-point near the end of the moven'ient of lllle t'itblflljl in the direction of the arrow 6, the screw it'll, will engage the roll! and rock the ltvfllfqflii uponqits pivot 50in'the direction of the arrow 6. This will cause theroll +l8-to be moved downwardly iinthe. cam path. to

the lower end .ofsaid. cam pathfin theu'li reetion ofthe arrow fund will move thev rockershaft 45 and its eccentric pin 44: in the opposite direction to thatofthe arrow 10 and. in the opposite direction .to thul' of the movement, of. the table flland racia and in the opposite direction tothe direction of movement of thatportionqof the gears 41 and tfltadjacent to the rack-1;, thus neutralizing or counteracting the effect of the rotarymotion of said earsupon the rack lB and acting as a cushion to bring said rack 43' and table 11 to; a gradualistop While this counteractinginfluence upon the movement of the table is taking place and while the lever being moved in. the direction of the arrow e, the stud titi; will. be moved in the same direction and will move thepin 59. toward theright (Fig 2), compressing the spring until the tripper screw .89 engages the tripper leverx83. and. tipping saidlever uponits pivot 84?. will lift the end 83 of said lever out of engagement with the plate 85, whereupon the slide (52 will be freed andwill he moved towardtho right (Fig 2) by the springylil. and by so moving will move the, bifurcated arm 65. in the same directioin togetherwith theelutch. member thus ino'vi. the clutch memli er 36 out: of engagement with thejteeth 390 i the gear 35. and bringingthe teeth 38, on said clutch member into engagei'nent with the teeth 4:0 on the gear31; whereupon themove ment of the sliCle-GQtow-artlthe right will be reverse to that of the .arrowc and thedireciao -60 "shaft 77 and through the link 7 omo-ves the v lever tapp'et 111 gin to move toward the left (Fig.

will move 1n thesame di-' ill tion of rotation ofthe gears 41 and will be reversed to drive the rack 4b and the table 11 in a direction opposite to that of arrow 6.

As-soon as the rack 43 and table 11 be rection and the lever 23 will be moved to its neutral position by the spring actuated pin 51 and the rocker arm 47 will be moved back -to the position illustratedin Fig. 1-,

thus movingthe rock-shaft45 and its eccentric pin 44 back to their original positions,

andinthe opposite direction'tothe direc tion in whichthat portion of the gears 41 and 42 adjacent to the rack 43 is being rotated at'that time, thus neutralizing and counteracting to acertain extent the movement of the rack 43, so that it will start to movethetable 11 slowly, andgradually said movement will increase until the full driving effect of said gears 41 and 42 will be accomplished. r

The shape of the cam slot 49 is so designed as to 'asslst 1n the gradual stopping of the reciprocatory movement oftherack 43 and table '11 and also to assist in the gradual starting 'of said table in the opposite direction to that in which it'wasformerly moving beforeit stopped. -When the table 11 fisarriving near the extreme end of its the rack 43 is now moving in the oppositedirection to that in which it was moving when the same wasbeing previously considered, it will be seen that the result of stopping the rack gradually-and of starting 7 it gradually will be the same at both ends of the movement of the table and that the shifting of the clu'tch will be reversed'when the tri-pper le'ver86 is disengaged from the plate 85' and the slide frame62 moved towardthe 'left by'the spring-'(iOwhich has been compressed by the stud 56 engaging) the pin 58. g ,Whenit is desired to move the table by "hand, the power mechanism is thrown out ofaction, as hereinbefore described, by rockingthe'hand lever 78 which thus rocks the arm 74 to-rock the shaft 73 and, disengage thefar-m 72 from the pin 7 0, leaving the rocker frame 67 free to swingto a limited .ex-

tent upon its pin 68' andbringing one of the 1) theedges 94 or 95 of the notch 92011 the arm 91 into engagement with the pin 93, whereupon, the sl1de'frame'62 will be moved to positionthe'clutch member36 midway be tween the gears 31 and and will be locked inthat position, and when said handlever 78 is thus rocked the spiralrgear 103 will be locked to the shaft 99. a The table may then be moved as desired by rotating the hand wheel 108. After the table has been moved by hand to the desired position, the power mechanism may'then be thrown into action by; throwing out the hand operating mechanism by means of the lever 78 and throwing the powermechanism into opera-= tion. During this latter movement of the hand lever 78 the slide frame '62 will be released, by reason of thearm 91 becoming disengaged from the pin 93 and the arm 7 2 becoming again engaged; with thepin which will correctly position and lock the rocking frame 67.

Having thus described-my invention, what I claim and desire by Letters Patent to secureis: p

1. An apparatus of the class described having, in combination, a rotary driving member, a reciprocatory driven member coacting "with said driving member and'driven thereby, a pin upon which said driving memher ismounted, means to impart a rotary motion-to said. driving member and means to impart a lateralmovement to said pin, whereby the reciprocatory movement of said driven member may be controlled.

I An apparatus of the class described having; in combination, a rotarydriving member, a reciprocatory driven member coactingwith said driving member'and driven thereby, a rock-shaft, an eccentric pin on said rock-shaft upon which said driving member, is rotatably mounted, means to rotate said driving member and means to rock said rock-shaft, whereby a'lateral movement may be imparted to said eccentric pin and member be controlled.

1 3. An apparatus of the class'described having, in combinatioma reciprocatory driven member, a rack fast thereto, a gear meshing with said rack, a worm gear fast to said gear, a pin upon which said gear and worm gear are rotatably mounted, a worm meshing with said worm gear, mechanism adapted to retate saidworm and means to impart a lateral movement to said pin, whereby the reciprocatory movement of said driven member maybe controlled. 1

4. An apparatus of the class described having, in combination, a reciprocatory driven member, a rack fast thereto, a gear meshing with said raclna worm geariast to said gear, a rock-shaft, an eccentric pin on said rock-shaft upon which said gear and worm gear are rotatably mounted, a worm the reciprocatory movement of said .drivenmeshing with said Worm gear, mechanism adapted to rotate said Worm and means to rock said rock-shaft, whereby a lateral move ment may be imparted to said eccentric pin and the reciprocatorp movement of said driven member be controlled.

5. An apparatus of the class described,

having, in combination, a reciprocatory drivenmcmber, a racklast thereto, a gear meshing with said rack. a worm gearfast to said gear, a rock-shaft. an eccentric pin on said rock-shaft upon which said gear and worm gear are rotatabl mounted, a, worm meshing with said Worm gear, mechanism adapted to rotate said Worm and a cam lever operatively connected with said roclr-sl1aft adapted to be moved to rock said rock-shaft, whereby a lateral HIOVQIYIBHhHlZLY he imparted to said eccentric pin andthe reciprocatory movement of said driven member controlled.

6. An apparatus of the class described having, incombination, a table, means for reciprocating said table including a, gear, a worm adapted to rotate'said gear, a clutch adapted to be operated to rotate said worm in opposite directions, means operated by said table adapted tomove said gear laterally of its axisto neutralize the effect oi? said worm upon said, gear and means operated by said gear movingfmeans during the neutralizing action thereof adapted to shift said clutch and reverse the action of said Worm.

7. An apparatus of the class described having, in combination, a table, means for reciprocating said table includlng agear, a Worm adapted to rotate said gear, means for reversing the action oi. said Worm, a pin upon which said gear is rotatablv mounted,

and means operatedbv said table adapted to more said pinlaterallv thereof in a direction reverse to that of said table, whereby the effect of said Worm upon said gear will be neutralized. s

8. An apparatus of the class described having, in combination, a reciprocating member. means for reciprocating said memberincluding a gear, a pin upon which said gear is rotatably mounted, a Worm adapted to rotate said gear, a pivoted earn, a rockshait upon which said pin is eccentrically mounted adaptedtobe'rocked by said cam \rherebv said pin may be moved laterally thereo't to neutralize'the effect ofsaid Worm upon said gear, means for rotating said Worm in opposite directions, a clutch adapted to be shifted from one of said Worm rotating means to the other to reverse the action ot' saidworm and means operated by said reciprocating member adapted to shift said clutch.

"9. An apparatus 'of' the class described having, in combination, a reciprocating member, a gear operativel'y connected with said reciprocating membemfa pin upon which said gear is rotatably mounted, a Worm adapted to rotate said gear, forward and reverse (:lriv'ii ig means for said Worm, a clutch adapted to be moved toconnect said worm either with said forward driving aneans or with said reverse driving means and iineans operated by said reciprocating member adapted to shift saidclutc'h from onejofsaid driving means to the other and for moving said pin laterally tliei'eofimmediately prior to the shifting ofsaid clutch and immediately following the shift-ingot said clutch. i i

10. An apparatus of the, class described having, in combination, a gear, a pin upon which said gear is rotatably mounted, a worm adapted to rotatesaid gear, torivard and reverse driving means for said worm, means to automatically shift from one of said driving means-to the other, and means adapted to move'said pin laterally thereof in one direction prior to the shift from one of said driving means to the other and to move said pin laterally thereof in the opposite Clirection immediately following said shift.

11. an apparatus of the class described having, in combination, gear, a pin upon which said gear is rotatably mounted, a Worm adapted to rotate said gear, forward and reverse driving means for said Worm, a clutch adapted to operatively connect said Worm with one or the other said driving means, means for automatically shifting said clutch and means tormoving said pin laterally thereotand immediately prior to the shiftin of said clutch.

12. An apparatus of the class described having, in combination. a gear, a pin upon which said gear is rotatably mounted, a worm adapted to rotate said gear, forward and reverse driving means for said Worm, a clutch adapted to o 'ierativelv connect said worm with one or the other of said driving means, means for automatically shifting said clutch, and means for moving saidpin laterally thereof in one direction prior to the shifting of said clutch and in the opposite direction immediately following the shiftingot said clutch.

A device of the character described havin in combination. a table, means to impart a reciprocatory motion to said table includin a gear. a rock-shaft, an eccentric pin on said rock-shaft upon which said gear is rotatably mounted, a rocker arm fast to said rock-shaft and a cam lever adapted to rock said rocker arm wherebya lateral movement may be imparted to said pin.

14. A device of: the character' described having, in combination, a table, means to impart a reciprocatory motion to saidtable including a gear, a rock-shaft, an eccentric pin on said rock-shaftupon which sa d gear is rotatably mounted, a rocker arm fast to said rock shaft, a cam lever adapted to rock said rocker arm,"and tappets on. said table I adapted to alternately rock said cam leverm oppo'site directions, whereby said pin may be laterally moved in opposite directions,

15,1'A device of the character described having, in combination, a table, means to impart a reoiprocatory motion to said table includinga gear, a rock-shaft, an eccentric pin on'said rock-shaft upon which said gear is rotatably mounted, a rocker arm fast to said roclcshaft, a cam lever adapted to rock said rocker arm, tappets on said table adapted to alternately rock said cam lever in opposite directions, whereby said pin may be laterally moved in opposite directions,and yielding means arranged on opposite sides of the pivot of said lever adapted to alternately return said lever to a central position.

16. An apparatus of the class described having, in combination, a rotary driving member, areciprocatory driven member coacting with said driving member and driven thereby, power driven mechanism adapted to rotate said driving member, mechanism adapted to imparta movement to said driving member laterally of its axis ofrotation,

manually operated mechanism adapted to rotate said driving member and means to alternately throw said power driven and manually drivenmechanisms into and out of} operation.

17.An apparatus of the class described having, in combination, a rotary driving member, areciprocatory driven member co acting with said driving member and driven thereby, mechanism adapted to rotatejsaid rotary member and mechanism adapted to impart a movement to said rotary member laterally of and including its axis of rotation, whereby the recip-rocatory movement of said reciprocatory member may be controlled. n

18. An apparatus of theclass described having, in combination, a rotary driving member,- a reciprocatory driven member coacting with said driving member anddriven thereby, mechanism adapted to rotate said driving member alternately in opposite directions and mechanism adapted to impart a lateral movement to saiddriving member alternately in opposite directions and laterally of and including its axis of rotation, whereby the movement of said driven member may beicontrolled at opposite ends of its reciprocatory movement.

a -19.An apparatus of the class described having, in combination, a rotary driving member, a reciprocatory driven member coacting With said drivingmember, mechanism adapted to rotate said drivingmember and mechanism actuated by said driven member a dap-te'dto move "said driving member latorally or andinrli-iding its axis of rotation.

dn apparatus or the class described having, in combination, a rotary driving member, areciprocatory driven member-coacting with said driving member and driven thereby, reversing mechanism adapted to alternately rotate said driving member in opposite directions and mechanisms actuated said reversing mechanism and adapted to move said driving member alternately in opposite directions and laterally of and including its axis of rotation. l

21. An apparatus of the class described having, in combination, a rotary driving member, a reciprocatorydriven member ooby said driven member adapted to operate acting with said driving member and driven member, a reciprocatory driven member 00- acting with said driving member and driven thereby, power driven reversing mechanism adapted to alternately rotate said driving member in opposite directions, mechanisms actuated by said driven member adapted to operate said reversing mechanism and adapt- 1 ed to move said driving member laterally of its axis of rotation alternately inopposite directions, manually operated mechanism adapted to rotate said driving member and means adapted to alternately throw said power driven and manually drivenmecha- .nisms into and out or operation.

23. An apparatus of the character ,described having, in combination, a gear, a worm adapted to rotate said gear, forward and reverse driving means for said worm,,a slide, means operatedbysaid slide adapted to shift from one of said driving means] to the other, a cam member movable relatively to said slide, yielding means interposed between said cam member and said slide and adapted to be compressed by the movement of said cam member, and means to lock said slidehaga-inst movement thereof by said yielding means, said locking means adapted to be released by said cam member to allow said slide tobe moved by said yielding means in opposite,directions. i i

Q LAn apparatus of the character de scribed having, in combination, a gear, av

worm adapted to rotate said gear, forward and reverse driving: means for said worm,

a slide, means operatedby. said slide adaptedto shiftfrom one o f said driving means to the other,1a cam member movable relatively;-

to said slide, yielding means interposed between said cam member and said slide and adapted to be compressed by the movement of said cam member, a rocker frame, means to lock said'roclrer frame in a stationary position, and means mounted on said rocker frame to lock said slide against movement thereof by said yielding means,

v/srd and reverse driving means for said norm, a clutch adapted to operatively connoct one or the other of said driving means with said Worm, a slide connected to said clutch and adopted to shift said clutch from one to the other of said driving means, as

cam member movable relatively to said slide, yielding means interposed between said cam member and said slide and adapted to be compressed by the movement of said cam member, a rocker frame, means to lock said rocker trams in a stationary position, means mounted on said rocker frame adapted to lock said slide against movement thereof by said yielding means, said locking means adnpted to be released by said cam member to allow said slide to be moved by said yielding means and thus to move said clutch in opposite directions, and manually operated means adapted to locl-z said slide with said clutch in neutral position and to unlock said roclrer frame.

26, An apparatus oi? the class described having, in combination, :1 table, means for reciprocating said table including a gear, eworm adapted to rotate said gear, forward and reverse driving means for said worm, s clutch. adapted to operatively connect one or the other of said driving means with said worm, a slide connected to said clutch and adapted to shift said clutch from one to the other of said driving means, a cam member movable relatively to said slide, yielding means interposed between said cam member and said slide and adapted to be com pressed by the movement of said cam member, a rocker frame, means to lock said rocker frame in a stationary position, means mounted on said rocker frame adapted to lock said slide against movement thereof by said yielding means, said latter locking means adapted to be released by said cam member to allow said slide to be moved by said yielding means and thus to move said clutch in opposite directions, and manually operated means adapted to lock said slide with said clutch in neutral position and to unlock said rocker frame, said manually operated means adapted to position and lock said rocker "frame in position. and to unlock saidslidc to allow the same to be operated by said yielding means.

27. An apparatus of the class described having, in combination, a table, means for reciprocating said table including a gear, a worm adapted to rotatesaid gear, forward and reverse driving means for said worm, a clutch adapted to operatively connect one or the other of said driving means with said 'worm, a movable cam member adapted to be operated in opposite directions by said table and means operatively connecting said cam member with said gear and said clutch adapted to control the efiect or" said gear upon said table and shift said clutch.

An apparatus of the class described having, in combination, a table, means for reciprocating said table including a gear, a V

Worm adapted to rotate said gear, forward and reverse driving means for said worm, a clutch adopted to operatively connect one or the other of said driving means with said worm, a movable cam member adapted to be operated in opposite directions by said table, means for yieldingly maintainingsaid cam in its. central position and means operatively connecting said cam member with said gear and said clutch adapted to control the effect of said gear upon said table and shift said clutch.

29. An apparatus of the class described having, in combination, a table, means for reciprocating said table including a gear, a worm adapted to rotate said gear, forward and reverse driving means for said worm, a clutclradapted to operatively connect one or the other 0t said driving means with said worm, a movable cam member adapted to be operated in opposite directions by said table, a pair of oppositely disposed springactuated contact members adapted to'centralize said cam member and means operatively connecting said cam member with said gear and clutch adapted to control the effect of said gear upon said table and shift said clutch.

ln testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WARRENF. FRASER. VVit-nesses: I

FRANKLIN E. Low, HERMAN R. HOFFMAN. I 

